People, in general, need basic medical training--as in first aid/CPR. I've needed to know/use first aid a number of times in my life and personally know folks who have needed to know/use CPR.

None of those CPR uses were gun related and the vast majority of the first aid uses had nothing to do with anything gun related. The ones that did were things that could have happened with any sort of mechanical device and weren't really related to anything specific to firearms.